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Investment Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Available-For-Sale-Securities-And-Held-To-Maturity-Securities
Investment securities available for sale, Cost Basis	$ 134,320	$ 129,550
Investment securities available for sale, Gross Unrealized Gains	658	960
Investment securities available for sale, Gross Unrealized Losses	(2,588)	(1,372)
Available for Sale, Fair Value, Total	132,390	129,138
Investment securities held to maturity, Cost Basis	38,663	38,752
Investment securities held to maturity, Gross Unrealized Gains	201	390
Investment securities held to maturity, Gross Unrealized Losses	(823)	(331)
Held to Maturity, Fair Value, Total	38,041	38,811
U.S. Agency [Member]
Available-For-Sale-Securities-And-Held-To-Maturity-Securities
Investment securities available for sale, Cost Basis	6,821	6,612
Investment securities available for sale, Gross Unrealized Gains	0	0
Investment securities available for sale, Gross Unrealized Losses	(166)	(40)
Available for Sale, Fair Value, Total	6,655	6,572
U.S. Agency mortgage-backed securities [Member]
Available-For-Sale-Securities-And-Held-To-Maturity-Securities
Investment securities available for sale, Cost Basis	82,648	79,854
Investment securities available for sale, Gross Unrealized Gains	396	611
Investment securities available for sale, Gross Unrealized Losses	(1,498)	(719)
Available for Sale, Fair Value, Total	81,546	79,746
Investment securities held to maturity, Cost Basis	8,809	9,740
Investment securities held to maturity, Gross Unrealized Gains	99	149
Investment securities held to maturity, Gross Unrealized Losses	(157)	(45)
Held to Maturity, Fair Value, Total	8,751	9,844
Taxable Municipal [Member]
Available-For-Sale-Securities-And-Held-To-Maturity-Securities
Investment securities available for sale, Cost Basis	8,929	7,198
Investment securities available for sale, Gross Unrealized Gains	8	27
Investment securities available for sale, Gross Unrealized Losses	(347)	(189)
Available for Sale, Fair Value, Total	8,590	7,036
Investment securities held to maturity, Cost Basis	23,813	22,970
Investment securities held to maturity, Gross Unrealized Gains	69	203
Investment securities held to maturity, Gross Unrealized Losses	(590)	(238)
Held to Maturity, Fair Value, Total	23,292	22,935
Corporate bonds [Member]
Available-For-Sale-Securities-And-Held-To-Maturity-Securities
Investment securities available for sale, Cost Basis	35,922	35,886
Investment securities available for sale, Gross Unrealized Gains	254	322
Investment securities available for sale, Gross Unrealized Losses	(577)	(424)
Available for Sale, Fair Value, Total	35,599	35,784
Corporate bonds and other securities [Member]
Available-For-Sale-Securities-And-Held-To-Maturity-Securities
Investment securities held to maturity, Cost Basis	6,041	6,042
Investment securities held to maturity, Gross Unrealized Gains	33	38
Investment securities held to maturity, Gross Unrealized Losses	(76)	(48)
Held to Maturity, Fair Value, Total	$ 5,998	$ 6,032

X

- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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