Investments, Amortized Cost, Gross Unrealized Gains and Losses and Fair Value of Investment (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Debt Securities [Abstract]
Amortized cost	$ 495,412	$ 412,018
Gross unrealized gains	29	4,381
Gross unrealized losses	(50,219)	(3,997)
Fair value	445,222	412,402
U.S. Agency Securities [Member]
Debt Securities [Abstract]
Amortized cost	81,546	73,803
Gross unrealized gains	0	976
Gross unrealized losses	(7,564)	(834)
Fair value	73,982	73,945
U.S. Treasury Securities [Member]
Debt Securities [Abstract]
Amortized cost	162,172	116,743
Gross unrealized gains	0	63
Gross unrealized losses	(14,328)	(1,459)
Fair value	147,844	115,347
Obligations of State and Political Subdivisions [Member]
Debt Securities [Abstract]
Amortized cost	123,230	109,367
Gross unrealized gains	10	2,706
Gross unrealized losses	(12,790)	(52)
Fair value	110,450	112,021
Corporate Obligations [Member]
Debt Securities [Abstract]
Amortized cost	10,346	10,378
Gross unrealized gains	0	39
Gross unrealized losses	(908)	(84)
Fair value	9,438	10,333
Mortgage-backed Securities in Government Sponsored Entities [Member]
Debt Securities [Abstract]
Amortized cost	118,118	101,727
Gross unrealized gains	19	597
Gross unrealized losses	(14,629)	(1,568)
Fair value	$ 103,508	$ 100,756

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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