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Investment Securities - Amortized Cost and Fair Value of Investment Securities Portfolio Expected Maturity (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |  |
Less than one year, Available for sale, Amortized Cost | $ 74,577 |
More than one year to five years, Available for sale, Amortized Cost | 26,622 |
More than five years to ten years, Available for sale, Amortized Cost | 20,518 |
More than ten years, Available for sale, Amortized Cost | 4,012 |
Available for sale, Amortized Cost | 125,729 | $ 75,663
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |  |
Less than one year, Available for sale, Estimated Fair Value | 74,598 |
More than one year, Available for sale, Estimated Fair Value | 26,629 |
More than five years to ten years, Available for sale, Estimated Fair Value | 20,812 |
More than ten years, Available for sale, Estimated Fair Value | 4,030 |
Available for sale, Estimated Fair value | 126,069 | 73,762
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract] |  |
Less than one year, Held to Maturity, Amortized Cost | 285 |
More than one year to five years, Held to Maturity, Amortized Cost | 2,756 |
More than five years to ten years, Held to Maturity, Amortized Cost | 870 |
Due from ten years and greater, Held to Maturity, Amortized Cost | 4,421 |
Held to maturity, Amortized Cost | 8,332 | 9,961
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |  |
'Less than one year, Held to Maturity, Estimated Fair Value | 289 |
More than one year to five years, Held to Maturity, Estimated Fair Value | 2,824 |
More than five years to ten years, Held to maturity, Estimated Fair Value | 958 |
More than Ten Years,Held to maturity estimated fair value | 4,561 |
Held to Maturity, Estimated Fair Value | 8,632 | 9,940
Government Agency Securities |  |
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |  |
More than one year to five years, Available for sale, Amortized Cost | 1,591 |
Available for sale, Amortized Cost | 1,591 | 1,873
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |  |
More than one year, Available for sale, Estimated Fair Value | 1,572 |
Available for sale, Estimated Fair value | 1,572 | 1,815
SBA Securities |  |
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |  |
More than one year to five years, Available for sale, Amortized Cost | 714 |
More than five years to ten years, Available for sale, Amortized Cost | 3,957 |
Available for sale, Amortized Cost | 4,671 | 5,354
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |  |
More than one year, Available for sale, Estimated Fair Value | 725 |
More than five years to ten years, Available for sale, Estimated Fair Value | 3,966 |
Available for sale, Estimated Fair value | 4,691 | 5,169
Mortgage-Backed Securities - Government Sponsored Agencies |  |
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |  |
Less than one year, Available for sale, Amortized Cost | 3,663 |
More than one year to five years, Available for sale, Amortized Cost | 13,027 |
More than five years to ten years, Available for sale, Amortized Cost | 2,436 |
Available for sale, Amortized Cost | 19,126 | 23,125
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |  |
Less than one year, Available for sale, Estimated Fair Value | 3,679 |
More than one year, Available for sale, Estimated Fair Value | 13,059 |
More than five years to ten years, Available for sale, Estimated Fair Value | 2,433 |
Available for sale, Estimated Fair value | 19,171 | 22,541
Collateralized Mortgage Obligations |  |
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |  |
More than one year to five years, Available for sale, Amortized Cost | 9,288 |
More than five years to ten years, Available for sale, Amortized Cost | 2,353 |
Available for sale, Amortized Cost | 11,641 | 12,696
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |  |
More than one year, Available for sale, Estimated Fair Value | 9,265 |
More than five years to ten years, Available for sale, Estimated Fair Value | 2,389 |
Available for sale, Estimated Fair value | 11,654 | 12,066
Corporate Debt Securities |  |
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract] |  |
Less than one year, Available for sale, Amortized Cost | 70,914 |
More than one year to five years, Available for sale, Amortized Cost | 2,002 |
More than five years to ten years, Available for sale, Amortized Cost | 11,772 |
More than ten years, Available for sale, Amortized Cost | 4,012 |
Available for sale, Amortized Cost | 88,700 | 32,615
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |  |
Less than one year, Available for sale, Estimated Fair Value | 70,919 |
More than one year, Available for sale, Estimated Fair Value | 2,008 |
More than five years to ten years, Available for sale, Estimated Fair Value | 12,024 |
More than ten years, Available for sale, Estimated Fair Value | 4,030 |
Available for sale, Estimated Fair value | 88,981 | 32,171
Municipal Taxable Securities |  |
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract] |  |
Less than one year, Held to Maturity, Amortized Cost | 285 |
More than one year to five years, Held to Maturity, Amortized Cost | 2,716 |
More than five years to ten years, Held to Maturity, Amortized Cost | 504 |
Held to maturity, Amortized Cost | 3,505 | 4,290
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |  |
'Less than one year, Held to Maturity, Estimated Fair Value | 289 |
More than one year to five years, Held to Maturity, Estimated Fair Value | 2,784 |
More than five years to ten years, Held to maturity, Estimated Fair Value | 579 |
Held to Maturity, Estimated Fair Value | 3,652 | 4,432
Municipal Securities |  |
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract] |  |
More than one year to five years, Held to Maturity, Amortized Cost | 40 |
More than five years to ten years, Held to Maturity, Amortized Cost | 366 |
Due from ten years and greater, Held to Maturity, Amortized Cost | 4,421 |
Held to maturity, Amortized Cost | 4,827 | 5,671
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract] |  |
More than one year to five years, Held to Maturity, Estimated Fair Value | 40 |
More than five years to ten years, Held to maturity, Estimated Fair Value | 379 |
More than Ten Years,Held to maturity estimated fair value | 4,561 |
Held to Maturity, Estimated Fair Value | $ 4,980 | $ 5,508

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