Investments, Amortized Cost, Gross Unrealized Gains and Losses and Fair Value of Investment (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt Securities [Abstract]
Amortized cost	$ 250,555	$ 237,807
Gross unrealized gains	7,442	3,201
Gross unrealized losses	(209)	(302)
Fair value	257,788	240,706
U.S. Agency Securities [Member]
Debt Securities [Abstract]
Amortized cost	74,681	83,410
Gross unrealized gains	2,869	1,523
Gross unrealized losses	(40)	(70)
Fair value	77,510	84,863
U.S. Treasury Securities [Member]
Debt Securities [Abstract]
Amortized cost	27,406	27,394
Gross unrealized gains	907	267
Gross unrealized losses	0	0
Fair value	28,313	27,661
Obligations of State and Political Subdivisions [Member]
Debt Securities [Abstract]
Amortized cost	73,276	60,667
Gross unrealized gains	1,650	865
Gross unrealized losses	(148)	(77)
Fair value	74,778	61,455
Corporate Obligations [Member]
Debt Securities [Abstract]
Amortized cost	3,250	3,250
Gross unrealized gains	97	78
Gross unrealized losses	0	0
Fair value	3,347	3,328
Mortgage-backed Securities in Government Sponsored Entities [Member]
Debt Securities [Abstract]
Amortized cost	71,942	63,086
Gross unrealized gains	1,919	468
Gross unrealized losses	(21)	(155)
Fair value	$ 73,840	$ 63,399

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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-Publisher FASB
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