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Investments, Gross Unrealized Losses and Fair Value and Net Unrealized Gains (Losses) (Details) $ in Thousands	Sep. 30, 2020 USD ($) Security	Dec. 31, 2019 USD ($)
Available-for-sale, Debt Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than twelve months, Fair value	$ 27,120	$ 49,832
Twelve months or greater, Fair value	5,779	24,160
Total, Fair value	32,899	73,992
Less than twelve months, Gross unrealized losses	(269)	(235)
Twelve months or greater, Gross unrealized losses	(38)	(67)
Total, Gross Unrealized Losses	$ (307)	(302)
Number of securities owned with fair value less than cost | Security	30
U.S. Agency Securities [Member]
Available-for-sale, Debt Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than twelve months, Fair value	$ 6,979	14,587
Twelve months or greater, Fair value	0	13,094
Total, Fair value	6,979	27,681
Less than twelve months, Gross unrealized losses	(44)	(63)
Twelve months or greater, Gross unrealized losses	0	(7)
Total, Gross Unrealized Losses	(44)	(70)
Obligations of State and Political Subdivisions [Member]
Available-for-sale, Debt Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than twelve months, Fair value	11,257	7,508
Twelve months or greater, Fair value	0	1,507
Total, Fair value	11,257	9,015
Less than twelve months, Gross unrealized losses	(127)	(75)
Twelve months or greater, Gross unrealized losses	0	(2)
Total, Gross Unrealized Losses	(127)	(77)
Mortgage-backed Securities in Government Sponsored Entities [Member]
Available-for-sale, Debt Securities, Fair Value and Gross Unrealized Losses [Abstract]
Less than twelve months, Fair value	8,884	27,737
Twelve months or greater, Fair value	5,779	9,559
Total, Fair value	14,663	37,296
Less than twelve months, Gross unrealized losses	(98)	(97)
Twelve months or greater, Gross unrealized losses	(38)	(58)
Total, Gross Unrealized Losses	$ (136)	$ (155)

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Number of investment positions in available-for-sale investments in a continuous unrealized loss position for which an other-than-temporary impairment (OTTI) has not been recognized in the income statement.

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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), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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