Goodwill and Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Jun. 30, 2022
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	$ 17,047
Balance, end of period	21,255
Less: accumulated amortization	(6,968)	$ (8,238)
Total	14,287	13,017
Fountain Leasing Limited Liability Company [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisition of business	2,658
Sevier County Bancshares Inc [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisition of business	1,550
Core Deposits [Member]
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	15,920
Balance, end of period	17,470
Less: accumulated amortization	(6,212)	(7,125)
Total	11,258	10,345
Core Deposits [Member] | Sevier County Bancshares Inc [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisition of business	1,550
Customer Relationships [Member]
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	1,064
Balance, end of period	3,722
Less: accumulated amortization	(733)	(1,084)
Total	2,989	2,638
Customer Relationships [Member] | Fountain Leasing Limited Liability Company [Member]
Finite-lived Intangible Assets [Roll Forward]
Acquisition of business	2,658
Trade Names [Member]
Finite-lived Intangible Assets [Roll Forward]
Balance, beginning of period	63
Balance, end of period	63
Less: accumulated amortization	(23)	(29)
Total	$ 40	$ 34