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Investment Securities - Amortized Cost and Estimated Fair Value of Investment Securities (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
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Schedule of Available-for-sale Securities and Held-to-Maturity Securities [Line Items] |  |
Totals, amortized cost | $ 125,205 | $ 111,221
Gross Unrealized Gains, Debt investment securities | 511 | 480
Gross Unrealized Losses, Debt investment securities | (4,464) | (773)
Available-for-sale Securities, Debt investment securities | 121,252 | 110,928
Amortized cost, equity securities | 206 | 206
Gross Unrealized Gains, Equity investment securities | 0 | 0
Gross Unrealized Losses, Equity investment securities | 0 | 0
Available-for-sale Securities, Equity investment securities | 206 | 206
Total investment securities, amortized cost basis | 125,411 | 111,427
Gross Unrealized Gains | 511 | 480
Gross Unrealized Losses | (4,464) | (773)
Estimated Fair Value | 121,458 | 111,134
Held-to-maturity securities, debt maturities, Amortized Cost | 120,549 | 122,988
Held to maturity, gross unrealized gains | 996 | 1,393
Held to maturity, gross unrealized losses | (4,457) | (233)
Held-to-maturity Securities, Debt Maturities, Fair Value | 117,088 | 124,148
US Treasury, Agencies and GSEs [Member] |  |
Schedule of Available-for-sale Securities and Held-to-Maturity Securities [Line Items] |  |
Totals, amortized cost | 19,645 | 16,850
Gross Unrealized Gains, Debt investment securities | 25 | 0
Gross Unrealized Losses, Debt investment securities | (25) | (30)
Available-for-sale Securities, Debt investment securities | 19,645 | 16,820
Held-to-maturity securities, debt maturities, Amortized Cost | 1,999 | 1,998
Held to maturity, gross unrealized gains | 13 | 2
Held to maturity, gross unrealized losses | 0 | 0
Held-to-maturity Securities, Debt Maturities, Fair Value | 2,012 | 2,000
State and Political Subdivisions [Member] |  |
Schedule of Available-for-sale Securities and Held-to-Maturity Securities [Line Items] |  |
Totals, amortized cost | 7,395 | 1,735
Gross Unrealized Gains, Debt investment securities | 0 | 1
Gross Unrealized Losses, Debt investment securities | (515) | 0
Available-for-sale Securities, Debt investment securities | 6,880 | 1,736
Held-to-maturity securities, debt maturities, Amortized Cost | 8,484 | 8,534
Held to maturity, gross unrealized gains | 75 | 124
Held to maturity, gross unrealized losses | (81) | (4)
Held-to-maturity Securities, Debt Maturities, Fair Value | 8,478 | 8,654
Corporate [Member] |  |
Schedule of Available-for-sale Securities and Held-to-Maturity Securities [Line Items] |  |
Totals, amortized cost | 12,303 | 12,347
Gross Unrealized Gains, Debt investment securities | 244 | 230
Gross Unrealized Losses, Debt investment securities | (337) | (23)
Available-for-sale Securities, Debt investment securities | 12,210 | 12,554
Held-to-maturity securities, debt maturities, Amortized Cost | 24,780 | 25,779
Held to maturity, gross unrealized gains | 210 | 584
Held to maturity, gross unrealized losses | (1,012) | (29)
Held-to-maturity Securities, Debt Maturities, Fair Value | 23,978 | 26,334
Asset Backed Securities [Member] |  |
Schedule of Available-for-sale Securities and Held-to-Maturity Securities [Line Items] |  |
Totals, amortized cost | 14,227 | 13,190
Gross Unrealized Gains, Debt investment securities | 0 | 61
Gross Unrealized Losses, Debt investment securities | (1,811) | (19)
Available-for-sale Securities, Debt investment securities | 12,416 | 13,232
Held-to-maturity securities, debt maturities, Amortized Cost | 26,016 | 23,099
Held to maturity, gross unrealized gains | 0 | 101
Held to maturity, gross unrealized losses | (1,992) | (115)
Held-to-maturity Securities, Debt Maturities, Fair Value | 24,024 | 23,085
Residential Mortgage-Backed - US Agency [Member] |  |
Schedule of Available-for-sale Securities and Held-to-Maturity Securities [Line Items] |  |
Totals, amortized cost | 20,112 | 19,012
Gross Unrealized Gains, Debt investment securities | 173 | 56
Gross Unrealized Losses, Debt investment securities | (139) | (88)
Available-for-sale Securities, Debt investment securities | 20,146 | 18,980
Held-to-maturity securities, debt maturities, Amortized Cost | 13,157 | 13,715
Held to maturity, gross unrealized gains | 320 | 247
Held to maturity, gross unrealized losses | (66) | (3)
Held-to-maturity Securities, Debt Maturities, Fair Value | 13,411 | 13,959
Collateralized Mortgage Obligations - US Agency [Member] |  |
Schedule of Available-for-sale Securities and Held-to-Maturity Securities [Line Items] |  |
Totals, amortized cost | 35,843 | 31,320
Gross Unrealized Gains, Debt investment securities | 62 | 35
Gross Unrealized Losses, Debt investment securities | (805) | (570)
Available-for-sale Securities, Debt investment securities | 35,100 | 30,785
Held-to-maturity securities, debt maturities, Amortized Cost | 22,950 | 19,607
Held to maturity, gross unrealized gains | 378 | 300
Held to maturity, gross unrealized losses | (177) | (29)
Held-to-maturity Securities, Debt Maturities, Fair Value | 23,151 | 19,878
Collateralized Mortgage Obligations - Private Label [Member] |  |
Schedule of Available-for-sale Securities and Held-to-Maturity Securities [Line Items] |  |
Totals, amortized cost | 15,680 | 16,767
Gross Unrealized Gains, Debt investment securities | 7 | 97
Gross Unrealized Losses, Debt investment securities | (832) | (43)
Available-for-sale Securities, Debt investment securities | 14,855 | 16,821
Held-to-maturity securities, debt maturities, Amortized Cost | 23,163 | 30,256
Held to maturity, gross unrealized gains | 0 | 35
Held to maturity, gross unrealized losses | (1,129) | (53)
Held-to-maturity Securities, Debt Maturities, Fair Value | 22,034 | 30,238
Mutual funds Common Stock Financial Services Industry [Member] |  |
Schedule of Available-for-sale Securities and Held-to-Maturity Securities [Line Items] |  |
Amortized cost, equity securities | 206 | 206
Gross Unrealized Gains, Equity investment securities | 0 | 0
Gross Unrealized Losses, Equity investment securities | 0 | 0
Available-for-sale Securities, Equity investment securities | $ 206 | $ 206

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