Investment Securities (Details 2) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Contractual maturities of securities
Available for Sale, Cost Basis, Within 1 year	$ 400
Available for Sale, Cost Basis, After 1 year but within 5 years	14,019
Available for Sale, Cost Basis, After 5 years but within 10 years	47,258
Available for Sale, Cost Basis, After 10 years but within 15 years	26,940
Available for Sale, Cost Basis, Over 15 years	45,703
Available for Sale, Cost Basis, Total	134,320
Available for Sale, Fair Value, Within 1 year	400
Available for Sale, Fair Value, After 1 year but within 5 years	13,920
Available for Sale, Fair Value, After 5 years but within 10 years	46,766
Available for Sale, Fair Value, After 10 years but within 15 years	26,332
Available for Sale, Fair Value, Over 15 years	44,972
Available for Sale, Fair Value, Total	132,390	$ 129,138
Held to Maturity, Cost Basis, Within 1 year	2,000
Held to Maturity, Cost Basis, After 1 year but within 5 years	2,671
Held to Maturity, Cost Basis, After 5 years but within 10 years	14,441
Held to Maturity, Cost Basis, After 10 years but within 15 years	14,789
Held to Maturity, Cost Basis, Over 15 years	4,762
Held to Maturity, Cost Basis, Total	38,663	38,752
Held to Maturity, Fair Value, Within 1 year	1,983
Held to Maturity, Fair Value, After 1 year but within 5 years	2,610
Held to Maturity, Fair Value, After 5 years but within 10 years	14,200
Held to Maturity, Fair Value, After 10 years but within 15 years	14,556
Held to Maturity, Fair Value, Over 15 years	4,692
Held to Maturity, Fair Value, Total	$ 38,041	$ 38,811

Available-for-sale securities debt maturities after fifteen years amortized cost.

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Available-for-sale securities debt maturities after fifteen years fair value.

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Available-for-sale securities debt maturities after ten through fifteen years amortized cost basis.

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Available-for-sale securities debt maturities after ten through fifteen years fair value.

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Held-to-maturity securities debt maturities after fifteen years fair value.

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Held-to-maturity securities debt maturities after fifteen years net carrying amount.

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Amount of held-to-maturity debt securities at fair value maturing in the tenth fiscal year through the fifteenth fiscal year following the latest fiscal year.

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Carrying amount of debt securities accounted for as held-to-maturity, net of adjustments including, but not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized, and fair value hedge accounting adjustments, maturing in the tenth through fifteenth fiscal year following the latest fiscal year.

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This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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

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Amount after adjustments of available-for-sale debt securities at cost, maturing in the sixth fiscal year through the tenth fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments, and fair value hedge accounting adjustments. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Fair value of available-for-sale debt securities maturing in the sixth fiscal year through the tenth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount after adjustments of available-for-sale debt securities at cost, maturing in the second fiscal year through the fifth fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments, and fair value hedge accounting adjustments. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Fair value of available-for-sale debt securities maturing in the second fiscal year through the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount after adjustments of available-for-sale debt securities at cost, maturing in the next fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments, and fair value hedge accounting adjustments. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Fair value of available-for-sale debt securities maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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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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Fair value of held-to-maturity debt securities maturing in the sixth fiscal year through the tenth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Carrying amount of debt securities accounted for as held-to-maturity, net of adjustments including, but not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized, and fair value hedge accounting adjustments, maturing in the fifth through tenth fiscal year following the latest fiscal year.

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Fair value of held-to-maturity debt securities maturing in the second fiscal year through the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Carrying amount of debt securities accounted for as held-to-maturity, net of adjustments including, but not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized, and fair value hedge accounting adjustments, maturing in the next fiscal year through the fifth fiscal year following the latest fiscal year.

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Fair value of held-to-maturity debt securities maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Fair value of investments in debt securities classified as held-to-maturity.

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