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Goodwill and Intangible Assets - Schedule of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Sep. 30, 2023
Finite-lived Intangible Assets [Roll Forward] |  |
Balance, beginning of period | $ 21,255 |
Balance, end of period | 23,203 |
Less: accumulated amortization | (9,576) | $ (11,556)
Total | 13,627 | 11,647
Sevier County Bancshares Inc [Member] |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Acquisition of business | 1,948 |
Core Deposits [Member] |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Balance, beginning of period | 17,470 |
Balance, end of period | 17,470 |
Less: accumulated amortization | (8,021) | (9,329)
Total | 9,449 | 8,141
Customer Relationships [Member] |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Balance, beginning of period | 3,722 |
Balance, end of period | 5,670 |
Less: accumulated amortization | (1,519) | (2,164)
Total | 4,151 | 3,506
Customer Relationships [Member] | Sevier County Bancshares Inc [Member] |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Acquisition of business | 1,948 |
Trade Names [Member] |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Balance, beginning of period | 63 |
Balance, end of period | 63 |
Less: accumulated amortization | (36) | $ (63)
Total | $ 27 |

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