Investments, Amortized Cost, Gross Unrealized Gains and Losses and Fair Value of Investment (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Debt Securities [Abstract]
Amortized cost	$ 364,036	$ 287,521
Gross unrealized gains	6,266	7,912
Gross unrealized losses	(1,300)	(244)
Fair value	369,002	295,189
U.S. Agency Securities [Member]
Debt Securities [Abstract]
Amortized cost	83,329	79,065
Gross unrealized gains	1,727	2,403
Gross unrealized losses	(545)	(52)
Fair value	84,511	81,416
U.S. Treasury Securities [Member]
Debt Securities [Abstract]
Amortized cost	69,408	27,442
Gross unrealized gains	404	601
Gross unrealized losses	(127)	0
Fair value	69,685	28,043
Obligations of State and Political Subdivisions [Member]
Debt Securities [Abstract]
Amortized cost	106,369	100,089
Gross unrealized gains	2,858	2,938
Gross unrealized losses	(72)	(55)
Fair value	109,155	102,972
Corporate Obligations [Member]
Debt Securities [Abstract]
Amortized cost	10,892	6,413
Gross unrealized gains	67	96
Gross unrealized losses	(4)	0
Fair value	10,955	6,509
Mortgage-backed Securities in Government Sponsored Entities [Member]
Debt Securities [Abstract]
Amortized cost	94,038	74,512
Gross unrealized gains	1,210	1,874
Gross unrealized losses	(552)	(137)
Fair value	$ 94,696	$ 76,249

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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