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Investment Securities (Schedule of Fair Values Investment Securities Available for Contractual Maturities) (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
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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 | $ 9,754 | $ 8,578
Contractual Maturities, One to five years, Yield | 2.14% | 2.03%
Contractual Maturities, Five to ten years, Amount | $ 19,307 | $ 22,379
Contractual Maturities, Five to ten years, Yield | 2.55% | 2.62%
Contractual Maturities, Over ten years, Amount | $ 46,191 | $ 43,948
Contractual Maturities, Over ten years, Yield | 2.76% | 2.81%
Contractual Maturities, Total, Amount | $ 75,252 | $ 74,905
Contractual Maturities, Total, Yield | 2.63% | 2.67%
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 | $ 3,969 | $ 2,665
Contractual Maturities, One to five years, Yield | 2.14% | 2.12%
Contractual Maturities, Five to ten years, Amount | $ 3,776 | $ 6,117
Contractual Maturities, Five to ten years, Yield | 2.68% | 2.77%
Contractual Maturities, Over ten years, Amount |  |
Contractual Maturities, Over ten years, Yield |  |
Contractual Maturities, Total, Amount | $ 7,745 | $ 8,782
Contractual Maturities, Total, Yield | 2.40% | 2.57%
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 | $ 752 |
Contractual Maturities, Five to ten years, Yield | 2.88% |
Contractual Maturities, Over ten years, Amount | $ 3,353 | $ 3,525
Contractual Maturities, Over ten years, Yield | 2.77% | 2.72%
Contractual Maturities, Total, Amount | $ 4,105 | $ 3,525
Contractual Maturities, Total, Yield | 2.79% | 2.72%
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 | $ 1,127 | $ 819
Contractual Maturities, One to five years, Yield | 2.97% | 2.60%
Contractual Maturities, Five to ten years, Amount | $ 4,175 | $ 4,637
Contractual Maturities, Five to ten years, Yield | 2.95% | 3.04%
Contractual Maturities, Over ten years, Amount | $ 2,907 | $ 2,900
Contractual Maturities, Over ten years, Yield | 2.88% | 2.88%
Contractual Maturities, Total, Amount | $ 8,209 | $ 8,356
Contractual Maturities, Total, Yield | 2.93% | 2.94%
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 | $ 1,682 | $ 1,862
Contractual Maturities, Five to ten years, Yield | 3.19% | 3.22%
Contractual Maturities, Over ten years, Amount | $ 9,137 | $ 7,696
Contractual Maturities, Over ten years, Yield | 3.19% | 3.29%
Contractual Maturities, Total, Amount | $ 10,819 | $ 9,558
Contractual Maturities, Total, Yield | 3.19% | 3.27%
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 | $ 4,658 | $ 5,094
Contractual Maturities, One to five years, Yield | 1.94% | 1.89%
Contractual Maturities, Five to ten years, Amount | $ 8,922 | $ 9,763
Contractual Maturities, Five to ten years, Yield | 2.15% | 2.22%
Contractual Maturities, Over ten years, Amount | $ 30,794 | $ 29,827
Contractual Maturities, Over ten years, Yield | 2.63% | 2.70%
Contractual Maturities, Total, Amount | $ 44,374 | $ 44,684
Contractual Maturities, Total, Yield | 2.46% | 2.50%

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