Borrowings, Line of Credit and Subordinated Debt - Subordinated Debt (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Sep. 01, 2021	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Sep. 28, 2018
Sevier County Bancshares Inc [Member]
Debt Instrument [Line Items]
Subordinated debt	$ 2,500
Subordinated Debt [Member]
Debt Instrument [Line Items]
Principal amount							$ 40,000
Interest rate							5.625%
Debt issuance costs		$ 422		$ 422		$ 485
Amortization expense of debt issuance costs		$ 21	$ 21	$ 63	$ 63
Subordinated Debt [Member] | Sevier County Bancshares Inc [Member]
Debt Instrument [Line Items]
Interest rate	6.75%
Subordinated Debt [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)				2.81161%
Subordinated Debt [Member] | London Interbank Offered Rate (LIBOR) [Member] | Sevier County Bancshares Inc [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	5.3025%