Securities - Summary of Amortized Cost and Fair Value of Securities Available for Sale, with Unrealized Gains and Losses (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Securities Available for Sale [Abstract]
Amortized cost	$ 78,144	$ 72,958
Gross unrealized gains	1,739	334
Gross unrealized (losses)	(100)	(1,408)
Fair value	79,783	71,884
Obligations of U.S. Government Corporations and Agencies [Member]
Securities Available for Sale [Abstract]
Amortized cost	63,090	57,673
Gross unrealized gains	937	26
Gross unrealized (losses)	(86)	(1,290)
Fair value	63,941	56,409
Obligations of States and Political Subdivisions [Member]
Securities Available for Sale [Abstract]
Amortized cost	15,054	14,605
Gross unrealized gains	802	93
Gross unrealized (losses)	(14)	(118)
Fair value	15,842	14,580
Corporate Bonds [Member]
Securities Available for Sale [Abstract]
Amortized cost	$ 680	680
Gross unrealized gains		215
Gross unrealized (losses)		0
Fair value		$ 895

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).

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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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