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Investment Securities (Schedule of Fair Values Investment Securities Available for Contractual Maturities) (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
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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 | $ 4,710 | $ 5,015
Contractual Maturities, One to five years, Yield | 1.06% | 1.10%
Contractual Maturities, Five to ten years, Amount | $ 17,343 | $ 17,575
Contractual Maturities, Five to ten years, Yield | 1.59% | 1.60%
Contractual Maturities, Over ten years, Amount | $ 70,944 | $ 72,139
Contractual Maturities, Over ten years, Yield | 1.37% | 1.50%
Contractual Maturities, Total, Amount | $ 92,997 | $ 94,729
Contractual Maturities, Total, Yield | 1.40% | 1.50%
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 | $ 2,497 | $ 2,501
Contractual Maturities, One to five years, Yield | 0.36% | 0.37%
Contractual Maturities, Five to ten years, Amount | $ 3,832 | $ 2,995
Contractual Maturities, Five to ten years, Yield | 1.12% | 1.07%
Contractual Maturities, Over ten years, Amount | $ 934 | $ 997
Contractual Maturities, Over ten years, Yield | 1.48% | 1.48%
Contractual Maturities, Total, Amount | $ 7,263 | $ 6,493
Contractual Maturities, Total, Yield | 0.91% | 0.86%
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 | $ 480 | $ 485
Contractual Maturities, Over ten years, Yield | 0.99% | 0.98%
Contractual Maturities, Total, Amount | $ 480 | $ 485
Contractual Maturities, Total, Yield | 0.99% | 0.98%
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 | $ 470 | $ 470
Contractual Maturities, One to five years, Yield | 2.13% | 2.13%
Contractual Maturities, Five to ten years, Amount | $ 2,756 | $ 3,053
Contractual Maturities, Five to ten years, Yield | 1.90% | 1.98%
Contractual Maturities, Over ten years, Amount | $ 16,585 | $ 15,865
Contractual Maturities, Over ten years, Yield | 2.18% | 2.23%
Contractual Maturities, Total, Amount | $ 19,811 | $ 19,388
Contractual Maturities, Total, Yield | 2.14% | 2.18%
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 | $ 1,888 | $ 1,983
Contractual Maturities, Five to ten years, Yield | 1.15% | 1.17%
Contractual Maturities, Over ten years, Amount | $ 9,395 | $ 9,546
Contractual Maturities, Over ten years, Yield | 0.97% | 1.00%
Contractual Maturities, Total, Amount | $ 11,283 | $ 11,529
Contractual Maturities, Total, Yield | 1.00% | 1.03%
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 | $ 1,743 | $ 2,044
Contractual Maturities, One to five years, Yield | 1.78% | 1.77%
Contractual Maturities, Five to ten years, Amount | $ 8,867 | $ 9,544
Contractual Maturities, Five to ten years, Yield | 1.78% | 1.74%
Contractual Maturities, Over ten years, Amount | $ 43,550 | $ 45,246
Contractual Maturities, Over ten years, Yield | 1.15% | 1.36%
Contractual Maturities, Total, Amount | $ 54,160 | $ 56,834
Contractual Maturities, Total, Yield | 1.28% | 1.44%

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