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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
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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