Investment Securities, Analysis of Gross Unrealized Losses (Details) $ in Thousands	Dec. 31, 2021 USD ($) Security	Dec. 31, 2020 USD ($)
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 389,464	$ 95,948
12 months or more, fair value	41,453	0
Total fair value	430,917	95,948
Less than 12 months, unrealized losses	(7,514)	(374)
12 Months or more, unrealized losses	(1,163)	0
Total unrealized losses	$ (8,677)	(374)
Investment securities in unrealized loss position less than 12 months | Security	168
Investment securities in unrealized loss position more than 12 months | Security	22
Investment securities pledged as collateral	$ 39,695	41,916
U.S. Treasury Securities [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	63,254	4,276
12 months or more, fair value	2,066	0
Total fair value	65,320	4,276
Less than 12 months, unrealized losses	(673)	(1)
12 Months or more, unrealized losses	(38)	0
Total unrealized losses	(711)	(1)
Securities of U.S. Government Agencies and Corporations [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	48,288	58,164
12 months or more, fair value	30,158	0
Total fair value	78,446	58,164
Less than 12 months, unrealized losses	(942)	(265)
12 Months or more, unrealized losses	(884)	0
Total unrealized losses	(1,826)	(265)
Obligations of States and Political Subdivisions [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	11,680	1,603
12 months or more, fair value	934	0
Total fair value	12,614	1,603
Less than 12 months, unrealized losses	(233)	(9)
12 Months or more, unrealized losses	(68)	0
Total unrealized losses	(301)	(9)
Collateralized Mortgage Obligations [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	90,299	1,697
12 months or more, fair value	1,298	0
Total fair value	91,597	1,697
Less than 12 months, unrealized losses	(2,850)	(8)
12 Months or more, unrealized losses	(35)	0
Total unrealized losses	(2,885)	(8)
Mortgage-backed Securities [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	175,943	30,208
12 months or more, fair value	6,997	0
Total fair value	182,940	30,208
Less than 12 months, unrealized losses	(2,816)	(91)
12 Months or more, unrealized losses	(138)	0
Total unrealized losses	$ (2,954)	$ (91)