Borrowings, Line of Credit and Subordinated Debt - Subordinated Debt Narrative (Details) - USD ($) $ in Thousands		3 Months Ended
	Sep. 01, 2021	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023	Sep. 28, 2018
Debt Instrument [Line Items]
Debt issuance costs				$ 401
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		$ 380		$ 401
Amortization expense of debt issuance costs		$ 21	$ 21
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%