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Investment Securities (Schedule of Fair Values Investment Securities Available for Contractual Maturities) (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
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Available for sale |  |
Contractual Maturities, Less than one year, Amount |  |
Contractual Maturities, Less than one year, Yield |  |
Contractual Maturities, One to five years, Amount | $ 3,723 | $ 4,675
Contractual Maturities, One to five years, Yield | 1.71% | 1.98%
Contractual Maturities, Five to ten years, Amount | $ 10,637 | $ 10,414
Contractual Maturities, Five to ten years, Yield | 2.13% | 2.17%
Contractual Maturities, Over ten years, Amount | $ 56,147 | $ 52,605
Contractual Maturities, Over ten years, Yield | 2.44% | 2.34%
Contractual Maturities, Total, Amount | $ 70,507 | $ 67,694
Contractual Maturities, Total, Yield | 2.36% | 2.29%
US Government Agencies [Member] |  |
Available for sale |  |
Contractual Maturities, Less than one year, Amount |  |
Contractual Maturities, Less than one year, Yield |  |
Contractual Maturities, One to five years, Amount | $ 499 | $ 499
Contractual Maturities, One to five years, Yield | 1.11% | 1.97%
Contractual Maturities, Five to ten years, Amount |  |
Contractual Maturities, Five to ten years, Yield |  |
Contractual Maturities, Over ten years, Amount |  |
Contractual Maturities, Over ten years, Yield |  |
Contractual Maturities, Total, Amount | $ 499 | $ 499
Contractual Maturities, Total, Yield | 1.11% | 1.97%
SBA Securities [Member] |  |
Available for sale |  |
Contractual Maturities, Less than one year, Amount |  |
Contractual Maturities, Less than one year, Yield |  |
Contractual Maturities, One to five years, Amount |  |
Contractual Maturities, One to five years, Yield |  |
Contractual Maturities, Five to ten years, Amount |  |
Contractual Maturities, Five to ten years, Yield |  |
Contractual Maturities, Over ten years, Amount | $ 501 | $ 531
Contractual Maturities, Over ten years, Yield | 2.39% | 2.62%
Contractual Maturities, Total, Amount | $ 501 | $ 531
Contractual Maturities, Total, Yield | 2.39% | 2.62%
State and Political Subdivisions [Member] |  |
Available for sale |  |
Contractual Maturities, Less than one year, Amount |  |
Contractual Maturities, Less than one year, Yield |  |
Contractual Maturities, One to five years, Amount |  | $ 808
Contractual Maturities, One to five years, Yield |  | 2.81%
Contractual Maturities, Five to ten years, Amount | $ 972 | $ 1,283
Contractual Maturities, Five to ten years, Yield | 2.65% | 2.96%
Contractual Maturities, Over ten years, Amount | $ 8,707 | $ 2,093
Contractual Maturities, Over ten years, Yield | 2.86% | 2.67%
Contractual Maturities, Total, Amount | $ 9,679 | $ 4,184
Contractual Maturities, Total, Yield | 2.84% | 2.79%
Asset-backed Securities [Member] |  |
Available for sale |  |
Contractual Maturities, Less than one year, Amount |  |
Contractual Maturities, Less than one year, Yield |  |
Contractual Maturities, One to five years, Amount |  |
Contractual Maturities, One to five years, Yield |  |
Contractual Maturities, Five to ten years, Amount | $ 1,402 | $ 1,493
Contractual Maturities, Five to ten years, Yield | 2.22% | 2.34%
Contractual Maturities, Over ten years, Amount | $ 10,884 | $ 11,674
Contractual Maturities, Over ten years, Yield | 2.45% | 2.61%
Contractual Maturities, Total, Amount | $ 12,286 | $ 13,167
Contractual Maturities, Total, Yield | 2.43% | 2.58%
Mortgage Backed Securities [Member] |  |
Available for sale |  |
Contractual Maturities, Less than one year, Amount |  |
Contractual Maturities, Less than one year, Yield |  |
Contractual Maturities, One to five years, Amount | $ 3,224 | $ 3,368
Contractual Maturities, One to five years, Yield | 1.80% | 1.78%
Contractual Maturities, Five to ten years, Amount | $ 8,263 | $ 7,638
Contractual Maturities, Five to ten years, Yield | 2.05% | 2.00%
Contractual Maturities, Over ten years, Amount | $ 36,055 | $ 38,307
Contractual Maturities, Over ten years, Yield | 2.34% | 2.24%
Contractual Maturities, Total, Amount | $ 47,542 | $ 49,313
Contractual Maturities, Total, Yield | 2.25% | 2.17%

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